EP0558807B1 - Inside filter for aquarium - Google Patents

Inside filter for aquarium Download PDF

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Publication number
EP0558807B1
EP0558807B1 EP92119943A EP92119943A EP0558807B1 EP 0558807 B1 EP0558807 B1 EP 0558807B1 EP 92119943 A EP92119943 A EP 92119943A EP 92119943 A EP92119943 A EP 92119943A EP 0558807 B1 EP0558807 B1 EP 0558807B1
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EP
European Patent Office
Prior art keywords
segment
filter according
inside filter
chamber
wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92119943A
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German (de)
French (fr)
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EP0558807A1 (en
Inventor
Klaus E. Dieckmann
Ulrich Dr. Herold
Ferdinand Mayer
Walter Wiedenmann
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Eheim GmbH and Co KG
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Eheim GmbH and Co KG
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Publication of EP0558807A1 publication Critical patent/EP0558807A1/en
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Publication of EP0558807B1 publication Critical patent/EP0558807B1/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
    • A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
    • A01K63/045—Filters for aquaria

Definitions

  • the invention relates to an internal filter for aquariums of the type mentioned in the preamble of claim 1.
  • An internal filter of this type is known (DE-GM 81 26 762.2), which is approximately rod-shaped and has an upper pump head, closed off with a cover, in which the complete electric motor with stator and rotor as well as its bearing axis and bearings, including that of the rotor driven impeller are included and in which the pump chamber and the pressure channel are arranged.
  • the electric motor with its components is permanently installed in this pump head.
  • the pump chamber and the pump wheel arranged therein are located below the stator and the rotor.
  • a housing part which contains a central suction channel coaxial to the rotor, which is defined, for example, by a tube provided with openings. At least one filter insert is placed on the pipe.
  • the housing part containing this filter insert has openings in its wall through which water is sucked in and sucked in through the filter insert into the central tube forming the suction channel can be. From there, the water gets through the pump through the pump chamber in the pump head and from there into the pressure channel located therein, through which the water is guided upwards until it can exit the pump head from an outlet opening located at the top.
  • the lower end of the bearing axis is held in a special base part which is detachably attached to the pump head from below and is located between the latter and the housing part adjoining it below, in which the filter insert is contained. If this known internal filter is to be cleaned, it must be removed as a whole from the aquarium tank and then dismantled.
  • the lower tubular housing part can be pulled off to change the filter insert.
  • the bottom end of the pump head must first be loosened and removed. Then the rotor with the bearing axis and bearings may disintegrate into individual parts, so that assembly causes problems. In addition, the individual areas are still difficult to access and therefore difficult to clean, even when the rotor with pump wheel is removed.
  • the invention has for its object to provide an internal filter for aquariums of the type mentioned in such a way that it can be dismantled quickly and easily by the user without special expertise and auxiliary tools so that a filter insert located in the filter chamber can be replaced quickly and easily and also other functional parts of the internal filter are easily accessible for cleaning, maintenance and repair purposes.
  • the object is in an internal filter for aquariums of the type mentioned according to the invention by the Features solved in the characterizing part of claim 1. Further advantageous features of the invention and refinements to this result from claims 2 to 34.
  • the inner filter By dividing the inner filter into the three segments that can be detached or reassembled, of which the first segment essentially contains the stator with electrical supply, it is possible, e.g. to replace the filter insert or for other cleaning or maintenance work, only to replace the third and second segments, while the first segment can still remain at the intended location within the aquarium tank.
  • the detached second and third segments can be removed from the pool and cleaned if necessary. If it is only a matter of changing the filter insert, only the third segment has to be lifted off, so that the upper end of the second segment is exposed for the removal of the filter insert.
  • the filter insert can then be quickly and easily removed upwards, without the risk that any dirt particles adhering to the filter insert get into the aquarium tank. Should cleaning e.g. of the third segment or also of the second segment, both segments are removed from the tank with the first segment remaining in the aquarium tank, cleaned and reinserted. This can also be done quickly and easily by the user without special knowledge and special tools.
  • an internal filter 10 is shown, which is advantageous for. B. can be dimensioned as a small filter, the z. B. suitable for aquariums up to 60 liters.
  • the internal filter 10 is immersed in an aquarium tank 11 and its rear side 12 is releasably attached to the facing inside 13 of an aquarium wall 14 by means of suitable holders 15, preferably by means of suction cups.
  • the water level in the aquarium tank 11 is indicated at 16 in FIG. 3, from which it can also be seen that the internal filter 10 is immersed correspondingly deep into the water in the aquarium tank 11.
  • the internal filter 10 has an electric motor 17, which has a stator 18 and a rotor 19 in the usual way and is fed from the power supply via an electrical feed line 20, the feed line 20 leading upwards out of the aquarium tank 11.
  • the electric motor 17 can be of a conventional type, e.g. B. be designed as a self-starting synchronous motor, the rotor 19 is permanently magnetic, for. B. is formed with two or more poles and is radially polarized, so that the magnetic poles with changing polarity are evenly distributed around the circumference of the rotor.
  • the rotor 19 is located in a passage 21 of the stator 18, forming the required air gap.
  • the rotor 19 is held on a one-part or two-part bearing axis 22 and rotatably mounted, which extends substantially vertically and is held at both ends in associated bearings 23 and 24, the z. B. consist of elastic elements, for example rubber grommets.
  • the rotor 19 drives a pump wheel 25 of a pump, which is located above the rotor 19 and within a pump chamber 26 and z. B. is multi-wing, as shown.
  • the inner filter 10 also has a suction channel, generally designated 30, which is connected on the one hand to the pump chamber 26 and which is preceded by a filter chamber 31 in the inner filter 10, to which the suction channel 30 is also connected.
  • a suction opening 32 which is open to the outside and is below the level of the water level 16, can suck water from the aquarium tank 11 into the filter chamber 31, as is shown in FIG. 2 by an arrow 33.
  • At least one schematically indicated filter insert 34 can be contained in the filter chamber 31, which consists of filter material, e.g. B. made of foam or other suitable filter material, including activated carbon or the like .. This filter insert 34 is only schematically indicated here as a coherent, upwardly extractable square block.
  • the inner filter 10 consists of three detachable or re-assemble, z. B. pluggable, segments 50, 60 and 70 is composed, which are designed so that these segments 50, 60 and 70 can be separated from the user at any time if necessary, for. B. so how is shown schematically in an exploded view in Fig. 1.
  • the first segment 50 will remain detachably fastened within the aquarium tank 11 and thereby attached to the aquarium wall 14 and only the second segment 60 and third segment 70 will be pulled upwards from the first segment 50, as will be explained in more detail later.
  • the first segment 50 is approximately L-shaped, with the shorter L-leg 51 projecting forward and onto which the second segment 60 can be placed in the vertical direction from above.
  • the first segment 50 essentially contains the stator 18 of the electric motor 17 with an electrical feed line 20 and forms the part which can be detachably attached to the aquarium wall 14 with its rear side 12, as already explained, and the z. B. for cleaning the inner filter 10 can remain in this fixed position shown in FIG. 3.
  • the second segment 60 is designed in such a way that it essentially contains the rotor 19 together with the bearing axis 22 and bearings 23 and 24 as well as the pump wheel 25 and also the pump chamber 26, at least most of it, as well as the filter chamber 31, the pressure channel 40 and the suction channel 30 , at least a substantial part of the latter being part of the second segment 60.
  • the third segment 70 is designed as an approximately cap-shaped cover and can be placed on top of the second segment 60, the latter closing off at the top.
  • the third segment 70 has the at least one suction opening 32 that can be connected to the filter chamber 31 and the at least one outlet opening 41 that can be connected to the pressure channel 40.
  • the so assembled internal filter 10 has in the assembled state of these three segments 50, 60 and 70 an elongated and substantially quadrangular, in particular approximately rectangular or square, body, as can be seen in particular from FIG. 2, wherein in the use position this body is aligned approximately vertically and is held in the aquarium pool 11.
  • the third segment 70 in particular in the form of the approximately cap-like cover, can be placed on the upper side of the second segment 60, but not on the first segment 50, with the second segment 60 on the upper side up to the height of the approximately vertical, longer one in the mounted state L-leg 52 of the first segment 50 extended.
  • the internal filter has an elongated and essentially round and / or angular, e.g. also triangular, body.
  • the third segment 70 has a z. B. round cap 71, which closes the pressure channel 40 approximately in the region of its upper end 42 and contains at least one opening 72 which, according to the view in FIG. B. is formed as an approximately reverse U-shaped slot and forms the outlet opening described above, through which the water exits the pressure channel 40 and gets back into the aquarium tank 11.
  • the cap 71 has a z. B. approximately cylindrical wall 73 and is inserted with this in the third segment 70 and held pivotally therein, for. B. by a pivot angle of z. B. maximum 70 °. As a result, the cap 71 forms an upper swivel spout, the user being able to specify the direction of the spout by rotating the cap 71.
  • the third segment 70 is provided with a device for controlling the volume flow.
  • the third segment 70 contains z. B. a passage cross section in the pressure channel 40, in particular in the transition region from the pressure channel 40 to the outlet opening 41, controlling slide 74, by means of which the volume flow can be controlled.
  • the slide 74 engages transversely in a tube part 75 of the third segment 70 and controls its passage cross section.
  • the slide 74 is engaged by an adjustment handle 76 which can be gripped from the outside and can be actuated in the same slide direction and which is held in the third segment 70 so as to be displaceable.
  • the third segment 70 is designed as a one-piece plastic molded part, into which the cap 71 and the displaceable slide 74, together with the adjusting handle 76, are interchangeably inserted.
  • the third segment 70 is e.g. B. connectable by means of a plug connection to the upper end of the second segment 60.
  • the pipe part 75 engages in the open top 42 of the pressure channel 40, producing an at least substantially tight connection.
  • the third segment 70 has at least one extension, in the exemplary embodiment shown two extensions 77, 78, each of which has openings 79 and 80, e.g. B. approximately vertically directed slots is provided, each extension 77, 78 from the openings 79 and 80 in the suction channel 30, in particular first in the filter chamber 31, transferred.
  • the two projections 77, 78 are located on the front 81 directed to the left in FIGS. 1 and 2 and protrude somewhat there.
  • the extensions 77, 78 run at a distance from one another and approximately parallel to one another, with each being designed in the same way.
  • Each extension 77, 78 engages over the second segment 60 at its facing upper end on the corresponding front side 61 thereof.
  • the opening 72 forming the outlet opening 41 in the cap 71, in particular in its wall 73, in the third segment 70 is provided on the same front 81 as the openings 79 and 80 forming the suction openings 32 and formed by means of the extensions 77, 78 on both sides, however at a distance above it, so that there is a clear vertical separation between the outlet opening 41 on the one hand and the suction openings 32 on the other.
  • the first segment 50 is preferably designed as a one-piece plastic molded part, in which the stator 18 with the electrical lead 20 is inserted.
  • the back 12 of the longer, approximately vertical L-leg 52 forms the fastening side on the holder 15, for. B. sucker, are arranged for releasable attachment to the inside 13 of the aquarium wall 14.
  • This rear side 12 contains an approximately groove-shaped receptacle 53 in which the electrical feed line 20 is guided upwards.
  • the stator 18 of the electric motor 17 is contained in the lower part of the first segment 50, in particular in the approximately horizontal, shorter L-leg 51 and / or transition region of the two legs 51, 52 into one another, where there is corresponding space.
  • the stator 18 is fastened in the first segment 50 and with a watertight seal.
  • the passage 21 in the stator 18 receiving the rotor 19 is directed essentially vertically.
  • the first segment 50 With an approximately vertical front wall 54 of the first segment 50, which runs at a distance from the rear side 12, the first segment 50 forms a rear wall limitation of the suction channel 30, which thus when the second segment 60 is removed from the first segment remaining on the aquarium wall 14 50 is exposed.
  • this front wall 54 in the lower region 55 which leads approximately to the approximately horizontal, shorter L-leg of the first segment 50, forms part of the wall boundary of the pump chamber 26, into which an inclined wall 56 leads.
  • the second segment 60 is also designed as a one-piece molded plastic part, in which the rotor 19 together with the bearing axis 22 and bearings 23, 24 and the pump wheel 25 and possibly at least one filter insert 34 are interchangeably inserted.
  • the second segment 60 is shorter by the height of the third segment 70 and the height of the approximately horizontal shorter L-leg 51 of the first segment 50 and narrower by the depth of the approximately vertical L-leg 52 than the first segment 50.
  • the dimensioning is selected such that the second segment 60 - placed on the part of the approximately horizontally shorter L-leg 51 of the first segment 50 projecting towards the front - the first segment 50 to a cross section which is essentially quadrangular, in particular approximately rectangular or square , Body supplemented, as Fig. 2 shows.
  • the second segment 60 has an approximately L-shaped inner channel, which is closed by walls 62, 63 leading into the pump chamber 26, which forms the pressure channel 40 and whose approximately vertical, longer L-leg extends on the front side and whose approximately horizontal, shorter L- Leg extends to the rear to form the pump chamber 26 and extends below in the bottom area.
  • the filter chamber 31 is created in the interior of the second segment 60 adjacent to the inner wall 63, which is thus delimited by the inner wall 63, further by the remaining areas of the front wall 64 adjacent thereto and by two approximately parallel side walls 65.
  • the second segment 60 On its rear side, which faces the front wall 54 of the first segment 50, the second segment 60 has a protruding wall part 66 which extends approximately over half the height of the second segment 60 and delimits the filter chamber 31.
  • the wall part 66 also delimits with its rear side a corresponding section of the suction channel 30, which is bounded on the rear side by the front wall 54 belonging to the first segment 50 when the inner filter 10 is in an operational state.
  • the second segment 60 contains a base part 67 which is connected in one piece to the wall 63 and the rear wall part 66 and extends in the transverse direction from one side wall 65 to the other side wall 65.
  • the upward-facing side of the bottom part 67 forms the bottom of the filter chamber 31, while the downward-facing side forms an upper-side boundary of the pump chamber 62.
  • the protruding wall part 66 merges with the arch or, as shown here, obliquely into the bottom part 67, the inclined course roughly corresponding to that of the oblique wall 56 on the first segment 50, which runs at a distance from the rear side thereof.
  • a short inclined wall section 68 extends, which extends from one side wall 65 to the other side wall 65 and is also an integral part of the segment 60.
  • the wall piece 68 thus continues the inclined course of the inclined wall 56 and thus completes the diagonally downward transfer section via which the suction channel 30 is connected to the pump chamber 26.
  • a filter insert 34 introduced into the filter chamber 31 is held at a distance above the bottom part 67 with its lower end.
  • the at least about half the height of the second segment 60 upward wall part 66 has the advantage that it forms a tub with a corresponding height together with the side walls 65 and the inner wall 63 and the areas of the front wall 64 running on both sides thereof the z. B. when pulling the filter insert 34 upward water remains, which is contained in the second segment 60 and also in the filter insert 34 and can be loaded with dirt particles. This ensures that when the filter insert 34 is changed and any contaminated water present in the tub described above remains trapped there and cannot leak into the aquarium tank 11.
  • the bottom part 67 of the second segment 60 has an upwardly directed and towards the filter chamber 31, in cross section approximately U-shaped protuberance 90, in which the upper bearing 23, z. B. a rubber grommet is added for the upper end of the bearing axis 22 of the rotor 19.
  • This protuberance 90 also forms with its upper wall facing the filter chamber 31 a projection corresponding to the projection 69, which can serve as a spacer on the underside of the filter insert 34 seated thereon.
  • the pressure channel 40 is designed as an inner channel in the second segment 60, which is separated from the filter chamber 31.
  • This inner channel is delimited on the one hand by the front wall 62, which is designed as an at least slightly protruding wall strip that protrudes forward in the manner of a balcony, which stretches from top to bottom in the central region of the front 61 of the second segment 60 and between the front walls adjoining it on both sides 64 runs.
  • the inner channel is delimited on the inside by the inner wall 63, which bulges inwards towards the filter chamber 31 and which extends approximately over the width of the outer wall 62 and with its side edges from the inside to the wall 62 to form a closed channel reaches. Both walls 62 and 63 thus delimit an inner tube channel which is closed with respect to the filter chamber 31 up to the pump chamber 26.
  • the second segment 60 also has, in the region below the pump chamber 26, a holding device 91 which projects downward and on which the rotor 19 together with the bearing axis 22 and the bearings 23 and 24 is held.
  • a holding device 91 which projects downward and on which the rotor 19 together with the bearing axis 22 and the bearings 23 and 24 is held.
  • the pump wheel 25 is driven by the rotor 19 in one direction of rotation when the internal filter 10 is switched on.
  • the electrical part of the electric motor 17 and the electrical feed line 20 are sealed so that any contact with water is excluded with certainty.
  • the third segment 70 thus separated can be easily cleaned by the user. If desired, the cap 71 and / or the slide 74 with the adjusting handle 76 can also be removed, provided that cleaning is also desired in these areas. The same procedure is also followed for the purpose of replacement in the event of damage or the like.
  • the user engages from above into the filter chamber 31 and pulls out the filter insert 34. Any dripping water as well as other water still in the filter chamber 31, which can be loaded with any dirt particles, is collected in the manner described in the tub in the filter chamber 31 and prevented from leaking or dripping into the aquarium tank 11.
  • the removed filter insert 34 can be cleaned or exchanged for another. Thereafter, the third segment 70 can be replaced in the opposite manner, so that the internal filter 10 is ready for operation again.
  • the second segment 60 is detached from the first segment 50 remaining on the aquarium pool 11 and removed from the aquarium pool 11. In this case too, any water loaded with dirt particles, which is located within the filter chamber 31, cannot run into the aquarium tank 11 and contaminate it.
  • the rotor 19 with the bearing axis 22 and bearings 23 and 24 is at the same time separated from the first segment 50 and pulled upwards, so that all components of the rotor including the pump wheel 25 are now freely accessible.
  • the inside of the pump chamber 26 is then also accessible from the outside because the lower region 55, which delimits the pump chamber 26 at the right end in FIG. 3, is part of the first segment 50 and remains in the aquarium tank 11 during this separation.
  • the wall part 66 of the suction channel 30 is also freely accessible, since the other front wall 54 delimiting the suction channel remains in the aquarium tank 11 as part of the first segment 50.
  • the entire rotor 19 with the bearing axis 22 and bearings 23 and 24 and with the impeller 25 can be cleaned, serviced and, if necessary, replaced.
  • the interior of the filter chamber 31 can then be easily cleaned with the filter insert 34 removed. If the internal filter 10 is to be put together again to form the ready-to-use body, the procedure is reversed, which is also quick and easy.
  • the suction openings 32 are not contained in the third segment 70, but suction areas are formed on the front side of the chest wall of the first segment 60, for example by webs and channels there between, which are overlapped by the second segment 60 at the top are, whereby a connection with the filter chamber 31 and the suction channel 30 is established.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Filtration Of Liquid (AREA)
  • Farming Of Fish And Shellfish (AREA)

Description

Die Erfindung bezieht sich auf einen Innenfilter für Aquarien der im Oberbegriff des Anspruchs 1 genannten Art.The invention relates to an internal filter for aquariums of the type mentioned in the preamble of claim 1.

Es ist ein Innenfilter dieser Art bekannt (DE-GM 81 26 762.2), der etwa stabförmig gestaltet ist und einen oberen, mit einem Deckel abgeschlossenen Pumpenkopf aufweist, in dem der komplette Elektromotor mit Stator und Rotor sowie dessen Lagerachse und Lagern einschließlich dem vom Rotor angetriebenen Pumpenrad enthalten sind und in dem die Pumpenkammer und der Druckkanal angeordnet sind. Der Elektromotor mit seinen Bestandteilen ist in diesem Pumpenkopf fest installiert. Die Pumpenkammer und das darin angeordnete Pumpenrad befinden sich unterhalb des Stators und des Rotors. Unterhalb dieses Pumpenkopfes ist ein Gehäuseteil angesetzt, das einen zum Rotor koaxialen zentralen Saugkanal enthält, der z.B. durch ein mit Durchbrüchen versehenes Rohr definiert ist. Auf das Rohr ist mindestens ein Filtereinsatz aufgesetzt. Das diesen Filtereinsatz enthaltende Gehäuseteilweist in seiner Wandung Durchbrüche auf, durch die hindurch Wasser eingesaugt und durch den Filtereinsatz in das zentrale, den Saugkanal bildende Rohr eingesaugt werden kann. Von dort gelangt das Wasser aufgrund der Pumpe durch die Pumpenkammer im Pumpenkopf und von dieser in den darin befindlichen Druckkanal, durch den das Wasser nach oben geführt wird, bis es aus einer oben befindlichen Austrittsöffnung aus dem Pumpenkopf austreten kann. Bei diesem Innenfilter ist das untere Ende der Lagerachse in einem besonderen Bodenteil gehalten, der von unten her lösbar an den Pumpenkopf angesetzt ist und sich zwischen diesem und dem unten anschließenden Gehäuseteil befindet, in dem der Filtereinsatz enthalten ist. Soll dieser bekannte Innenfilter gereinigt werden, so muß er als Ganzes aus dem Aquariumbecken entnommen und dann demontiert werden. Zum Wechsel des Filtereinsatzes läßt sich der untere rohrförmige Gehäuseteil abziehen. Soll jedoch z.B. das Pumpenrad, der benachbarte Bereich des Rotors, der Bereich der Pumpenkammer oder der Druckkanal gereinigt werden, so muß zunächst der bodenseitige Abschluß des Pumpenkopfes gelöst und abgenommen werden. Dann kann der Rotor mit Lagerachse und Lagern evtl. in seine Einzelteile zerfallen, so daß ein Zusammenbau Probleme mit sich bringt. Außerdem sind die einzelnen Bereiche selbst bei entferntem Rotor mit Pumpenrad nach wie vor schlecht zugänglich und somit schlecht zu reinigen.An internal filter of this type is known (DE-GM 81 26 762.2), which is approximately rod-shaped and has an upper pump head, closed off with a cover, in which the complete electric motor with stator and rotor as well as its bearing axis and bearings, including that of the rotor driven impeller are included and in which the pump chamber and the pressure channel are arranged. The electric motor with its components is permanently installed in this pump head. The pump chamber and the pump wheel arranged therein are located below the stator and the rotor. Below this pump head is a housing part which contains a central suction channel coaxial to the rotor, which is defined, for example, by a tube provided with openings. At least one filter insert is placed on the pipe. The housing part containing this filter insert has openings in its wall through which water is sucked in and sucked in through the filter insert into the central tube forming the suction channel can be. From there, the water gets through the pump through the pump chamber in the pump head and from there into the pressure channel located therein, through which the water is guided upwards until it can exit the pump head from an outlet opening located at the top. In this internal filter, the lower end of the bearing axis is held in a special base part which is detachably attached to the pump head from below and is located between the latter and the housing part adjoining it below, in which the filter insert is contained. If this known internal filter is to be cleaned, it must be removed as a whole from the aquarium tank and then dismantled. The lower tubular housing part can be pulled off to change the filter insert. However, if, for example, the pump wheel, the adjacent area of the rotor, the area of the pump chamber or the pressure channel are to be cleaned, the bottom end of the pump head must first be loosened and removed. Then the rotor with the bearing axis and bearings may disintegrate into individual parts, so that assembly causes problems. In addition, the individual areas are still difficult to access and therefore difficult to clean, even when the rotor with pump wheel is removed.

Der Erfindung liegt die Aufgabe zugrunde, einen Innenfilter für Aquarien der eingangs genannten Art so auszubilden, daß dieser vom Benutzer ohne besondere Fachkenntnis und Hilfswerkzeuge schnell und einfach so demontierbar ist, daß ein in der Filterkammer befindlicher Filtereinsatz schnell und problemlos ausgewechselt werden kann und auch die sonstigen Funktionsteile des Innenfilters zu Reinigungs-, Wartungs- und Reparaturzwecken gut zugänglich sind.The invention has for its object to provide an internal filter for aquariums of the type mentioned in such a way that it can be dismantled quickly and easily by the user without special expertise and auxiliary tools so that a filter insert located in the filter chamber can be replaced quickly and easily and also other functional parts of the internal filter are easily accessible for cleaning, maintenance and repair purposes.

Die Aufgabe ist bei einem Innenfilter für Aquarien der eingangs genannten Art gemäß der Erfindung durch die Merkmale im Kennzeichnungsteil des Anspruchs 1 gelöst. Weitere vorteilhafte Erfindungsmerkmale und Ausgestaltungen dazu ergeben sich aus den Ansprüchen 2 bis 34.The object is in an internal filter for aquariums of the type mentioned according to the invention by the Features solved in the characterizing part of claim 1. Further advantageous features of the invention and refinements to this result from claims 2 to 34.

Durch die Unterteilung des Innenfilters in die drei voneinander lösbaren bzw. wieder zusammensetzbaren Segmente, von denen das erste Segment im wesentlichen den Stator mit elektrischer Zuleitung enthält, ist es möglich gemacht, z.B. zum Austausch des Filtereinsatzes oder zu sonstigen Reinigungs- oder Wartungsarbeiten lediglich das dritte und zweite Segment abzulösen, während das erste Segment nach wie vor innerhalb des Aquariumbeckens an vorgesehener Stelle verbleiben kann. Das abgelöste zweite und dritte Segment kann aus dem Becken entnommen und bedarfsweise gereinigt werden. Wenn es nur darum geht, den Filtereinsatz zu wechseln, muß lediglich das dritte Segment abgehoben werden, so daß das obere Ende des zweiten Segments zur Entnahme des Filtereinsatzes freigelegt ist. Der Filtereinsatz läßt sich dann schnell und problemlos nach oben entnehmen, ohne daS im übrigen die Gefahr besteht, daS etwaige am Filtereinsatz haftende Schmutzpartikel in das Aquariumbecken gelangen. Soll auch eine Reinigung z.B. des dritten Segments oder auch des zweiten Segments erfolgen, so werden beide Segmente bei im Aquariumbecken verbleibendem ersten Segment aus dem Becken entnommen, gereinigt und wieder eingesetzt. Auch dies läßt sich vom Benutzer ohne besondere Fachkenntnisse und Spezialwerkzeuge schnell und problemlos bewerkstelligen.By dividing the inner filter into the three segments that can be detached or reassembled, of which the first segment essentially contains the stator with electrical supply, it is possible, e.g. to replace the filter insert or for other cleaning or maintenance work, only to replace the third and second segments, while the first segment can still remain at the intended location within the aquarium tank. The detached second and third segments can be removed from the pool and cleaned if necessary. If it is only a matter of changing the filter insert, only the third segment has to be lifted off, so that the upper end of the second segment is exposed for the removal of the filter insert. The filter insert can then be quickly and easily removed upwards, without the risk that any dirt particles adhering to the filter insert get into the aquarium tank. Should cleaning e.g. of the third segment or also of the second segment, both segments are removed from the tank with the first segment remaining in the aquarium tank, cleaned and reinserted. This can also be done quickly and easily by the user without special knowledge and special tools.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung.Further details and advantages of the invention emerge from the following description.

Der vollständige Wortlaut der Ansprüche ist vorstehend allein zur Vermeidung unnötiger Wiederholungen nicht wiedergegeben, sondern statt dessen lediglich durch Nennung der Anspruchsnummern darauf Bezug genommen, wodurch jedoch alle diese Anspruchsmerkmale als an dieser Stelle ausdrücklich und erfindungswesentlich offenbart zu gelten haben.The full wording of the claims is not reproduced above solely in order to avoid unnecessary repetition, but instead is referred to only by mentioning the claim numbers, whereby all these features of the claim are to be regarded as being explicitly disclosed here and essential to the invention.

Die Erfindung ist nachfolgend anhand von in den Zeichnungen gezeigten Ausführungsbeispielen näher erläutert. Es zeigen:

Fig. 1
eine perspektivische Explosionsdarstellung eines Innenfilters für Aquarien, bei der die einzelnen separierten Segmente zur Vereinfachung nur schematisch dargestellt sind,
Fig. 2
eine schematische perspektivische Darstellung mit vertikalem Schnitt des Innenfilters in Fig. 1 im funktionsbereiten Zustand,
Fig. 3
einen schematischen vertikalen Schnitt des Innenfilters in Fig. 1 und 2,
Fig. 4
eine Ansicht der Kappe des Innenfilters in Pfeilrichtung IV in Fig. 3,
Fig. 5
eine Ansicht des Innenfilters in Pfeilrichtung V in Fig. 3 bei abgenommenem oberen dritten Segment,
Fig. 6
eine schematische, teilweise geschnittene Seitenansicht des dritten Segments des Innenfilters, ohne eingesetzte Kappe und ohne eingesetzten Schieber der Volumensteuerung,
Fig. 7
eine zum Teil geschnittene Seitenansicht des herausgenommenen zweiten Segments des Innenfilters.
The invention is explained in more detail below with reference to exemplary embodiments shown in the drawings. Show it:
Fig. 1
3 shows an exploded perspective view of an internal filter for aquariums, in which the individual separated segments are only shown schematically for simplification,
Fig. 2
1 shows a schematic perspective illustration with a vertical section of the internal filter in FIG. 1 in the ready-to-operate state,
Fig. 3
1 shows a schematic vertical section of the internal filter in FIGS. 1 and 2,
Fig. 4
3 shows a view of the cap of the inner filter in the direction of arrow IV in FIG. 3,
Fig. 5
3 shows a view of the inner filter in the direction of arrow V in FIG. 3 with the upper third segment removed,
Fig. 6
2 shows a schematic, partially sectioned side view of the third segment of the internal filter, without an inserted cap and without an inserted slide of the volume control,
Fig. 7
a partially sectioned side view of the removed second segment of the inner filter.

In den Zeichnungen ist ein Innenfilter 10 gezeigt, der mit Vorteil z. B. als Kleinstfilter dimensioniert sein kann, der sich z. B. für Aquarien bis 60 Liter Inhalt eignet. Der Innenfilter 10 wird, wie in Fig. 3 angedeutet ist, in ein Aquariumbecken 11 eingetaucht und mit seiner Rückseite 12 an der zugewandten Innenseite 13 einer Aquariumwand 14 mittels geeigneter Halter 15, vorzugsweise mittels Saugern, lösbar befestigt. Der Wasserstand im Aquariumbecken 11 ist in Fig. 3 mit 16 angedeutet, woraus zugleich ersichtlich ist, daß der Innenfilter 10 entsprechend tief in das im Aquariumbecken 11 befindliche Wasser eintaucht.In the drawings, an internal filter 10 is shown, which is advantageous for. B. can be dimensioned as a small filter, the z. B. suitable for aquariums up to 60 liters. As indicated in FIG. 3, the internal filter 10 is immersed in an aquarium tank 11 and its rear side 12 is releasably attached to the facing inside 13 of an aquarium wall 14 by means of suitable holders 15, preferably by means of suction cups. The water level in the aquarium tank 11 is indicated at 16 in FIG. 3, from which it can also be seen that the internal filter 10 is immersed correspondingly deep into the water in the aquarium tank 11.

Der Innenfilter 10 weist einen Elektromotor 17 auf, der in üblicher Weise einen Stator 18 und einen Rotor 19 hat und über eine elektrische Zuleitung 20 vom Stromnetz gespeist wird, wobei die Zuleitung 20 aus dem Aquariumbecken 11 nach oben herausgeführt ist. Der Elektromotor 17 kann herkömmlicher Art sein, z. B. als selbstanlaufender Synchronmotor ausgebildet sein, dessen Rotor 19 permanentmagnetisch ist, z. B. zwei- oder mehrpolig ausgebildet und radial polarisiert ist, so daS die Magnetpole mit wechselnder Polarität gleichmäßig rings um den Rotorumfang verteilt sind. Dabei befindet sich der Rotor 19 in einem Durchlaß 21 des Stators 18 unter Bildung des erforderlichen Luftspaltes. Der Rotor 19 ist auf einer einteiligen oder zweiteiligen Lagerachse 22 gehalten und drehbar gelagert, die im wesentlichen vertikal verläuft und mit beiden Enden in zugeordneten Lagern 23 bzw. 24 gehalten ist, die z. B. aus elastischen Elementen, beispielsweise Gummitüllen, bestehen. Der Rotor 19 treibt ein Pumpenrad 25 einer Pumpe an, das sich oberhalb des Rotors 19 und innerhalb einer Pumpenkammer 26 befindet und z. B. mehrflügelig, wie gezeigt, ausgebildet ist.The internal filter 10 has an electric motor 17, which has a stator 18 and a rotor 19 in the usual way and is fed from the power supply via an electrical feed line 20, the feed line 20 leading upwards out of the aquarium tank 11. The electric motor 17 can be of a conventional type, e.g. B. be designed as a self-starting synchronous motor, the rotor 19 is permanently magnetic, for. B. is formed with two or more poles and is radially polarized, so that the magnetic poles with changing polarity are evenly distributed around the circumference of the rotor. The rotor 19 is located in a passage 21 of the stator 18, forming the required air gap. The rotor 19 is held on a one-part or two-part bearing axis 22 and rotatably mounted, which extends substantially vertically and is held at both ends in associated bearings 23 and 24, the z. B. consist of elastic elements, for example rubber grommets. The rotor 19 drives a pump wheel 25 of a pump, which is located above the rotor 19 and within a pump chamber 26 and z. B. is multi-wing, as shown.

Der Innenfilter 10 weist ferner einen allgemein mit 30 bezeichneten Saugkanal im Inneren auf, der einerseits mit der Pumpenkammer 26 in Verbindung steht und dem eine Filterkammer 31 im Innenfilter 10 vorgeschaltet ist, mit der der Saugkanal 30 ebenfalls Verbindung hat. In die Filterkammer 31 ist bei umlaufendem Pumpenrad 25 über mindestens eine nach außen hin offene und unter dem Niveau des Wasserstands 16 befindliche Ansaugöffnung 32 Wasser aus dem Aquariumbecken 11 einsaugbar, wie in Fig. 2 durch einen Pfeil 33 verdeutlicht ist. In der Filterkammer 31 kann mindestens ein schematisch angedeuteter Filtereinsatz 34 enthalten sein, der aus Filtermaterial besteht, z. B. aus Schaumstoff oder aus anderem geeigneten Filtermaterial, auch Aktivkohle od. dgl.. Dieser Filtereinsatz 34 ist nur schematisch hier als zusammenhängender, nach oben herausziehbarer Viereckblock angedeutet. Er wird vom angesaugten Wasser entsprechend den Pfeilen in Fig. 2 und 3 auf seiner gesamten Vertikalerstreckung oder zumindest auf einem wesentlichen Teil dieser quer durchströmt, woraufhin das Wasser nach Passieren des Filtereinsatzes 34, des Saugkanals 30 und der Pumpenkammer 26 in einen Druckkanal 40 gelangt, der einerseits mit der Pumpenkammer 26 und andererseits mit mindestens einer Austrittsöffnung 41 in Verbindung steht, aus der das Wasser entsprechend den Pfeilen in Fig. 2 und 3 aus dem Innenfilter 10 austritt und in das Aquariumbecken 11 zurück gelangt. Der Innenfilter 10 ist dabei so tief in das Wasser im Aquariumbecken eingetaucht, daß mit Vorzug die mindestens eine Austrittsöffnung 41 sich oberhalb des Wasserstandes 16 befindet.The inner filter 10 also has a suction channel, generally designated 30, which is connected on the one hand to the pump chamber 26 and which is preceded by a filter chamber 31 in the inner filter 10, to which the suction channel 30 is also connected. With the pump wheel 25 rotating, at least one suction opening 32, which is open to the outside and is below the level of the water level 16, can suck water from the aquarium tank 11 into the filter chamber 31, as is shown in FIG. 2 by an arrow 33. At least one schematically indicated filter insert 34 can be contained in the filter chamber 31, which consists of filter material, e.g. B. made of foam or other suitable filter material, including activated carbon or the like .. This filter insert 34 is only schematically indicated here as a coherent, upwardly extractable square block. It is traversed by the sucked-in water according to the arrows in FIGS. 2 and 3 over its entire vertical extent or at least over a substantial part thereof, whereupon the water, after passing through the filter insert 34, the suction channel 30 and the pump chamber 26, enters a pressure channel 40, which is connected on the one hand to the pump chamber 26 and on the other hand to at least one outlet opening 41, from which the water emerges from the internal filter 10 in accordance with the arrows in FIGS. 2 and 3 and returns to the aquarium tank 11. The internal filter 10 is so deeply immersed in the water in the aquarium tank that the at least one outlet opening 41 is preferably located above the water level 16.

Eine weitere Besonderheit des Innenfilters 10 liegt darin, daß dieser aus drei voneinander lösbaren bzw. wieder zusammensetzbaren, z. B. zusammensteckbaren, Segmenten 50, 60 und 70 zusammengesetzt ist, die so gestaltet sind, daß diese Segmente 50, 60 und 70 vom Benutzer selbst bedarfsweise jederzeit voneinander getrennt werden können, z. B. so, wie in Explosionsdarstellung in Fig. 1 schematisch angedeutet ist. In der Regel wird dabei das erste Segment 50 innerhalb des Aquariumbeckens 11 und dabei an der Aquariumwand 14 lösbar befestigt verbleiben und nur das zweite Segment 60 und dritte Segment 70 vom ersten Segment 50 nach oben hin abgezogen, wie später noch näher erläutert wird.Another peculiarity of the inner filter 10 is that it consists of three detachable or re-assemble, z. B. pluggable, segments 50, 60 and 70 is composed, which are designed so that these segments 50, 60 and 70 can be separated from the user at any time if necessary, for. B. so how is shown schematically in an exploded view in Fig. 1. As a rule, the first segment 50 will remain detachably fastened within the aquarium tank 11 and thereby attached to the aquarium wall 14 and only the second segment 60 and third segment 70 will be pulled upwards from the first segment 50, as will be explained in more detail later.

Das erste Segment 50 ist etwa L-förmig ausgebildet, wobei der kürzere L-Schenkel 51 nach vorn ragt und auf diesen das zweite Segment 60 in vertikaler Richtung von oben aufsetzbar ist. Das erste Segment 50 enthält im wesentlichen den Stator 18 des Elektromotors 17 mit elektrischer Zuleitung 20 und bildet den Teil, der mit seiner Rückseite 12 lösbar an der Aquariumwand 14 befestigt werden kann, wie schon erläutert ist, und der z. B. zur Reinigung des Innenfilters 10 in dieser fest angebrachten Position gemäß Fig. 3 verbleiben kann.The first segment 50 is approximately L-shaped, with the shorter L-leg 51 projecting forward and onto which the second segment 60 can be placed in the vertical direction from above. The first segment 50 essentially contains the stator 18 of the electric motor 17 with an electrical feed line 20 and forms the part which can be detachably attached to the aquarium wall 14 with its rear side 12, as already explained, and the z. B. for cleaning the inner filter 10 can remain in this fixed position shown in FIG. 3.

Das zweite Segment 60 ist so gestaltet, daß es im wesentlichen den Rotor 19 mitsamt Lagerachse 22 und Lagern 23 und 24 sowie Pumpenrad 25 enthält und ferner die Pumpenkammer 26, zumindest deren größten Teil, sowie die Filterkammer 31, den Druckkanal 40 und den Saugkanal 30, wobei von letzterem zumindest ein wesentlicher Teil Bestandteil des zweiten Segments 60 ist.The second segment 60 is designed in such a way that it essentially contains the rotor 19 together with the bearing axis 22 and bearings 23 and 24 as well as the pump wheel 25 and also the pump chamber 26, at least most of it, as well as the filter chamber 31, the pressure channel 40 and the suction channel 30 , at least a substantial part of the latter being part of the second segment 60.

Das dritte Segment 70 ist als etwa kappenförmiger Deckel ausgebildet und auf das zweite Segment 60 oben aufsetzbar, wobei es letzteres oben abschließt. Dabei weist das dritte Segment 70 die mit der Filterkammer 31 in Verbindung bringbare, mindestens eine Ansaugöffnung 32 sowie die mit dem Druckkanal 40 in Verbindung bringbare mindestens eine Austrittsöffnung 41 auf.The third segment 70 is designed as an approximately cap-shaped cover and can be placed on top of the second segment 60, the latter closing off at the top. The third segment 70 has the at least one suction opening 32 that can be connected to the filter chamber 31 and the at least one outlet opening 41 that can be connected to the pressure channel 40.

Der so zusammengesetzte Innenfilter 10 hat im zusammengesetzten Zustand dieser drei Segmente 50, 60 und 70 einen langgestreckten und im wesentlichen viereckigen, insbesodnere etwa rechteckigen oder quadratischen, Körper, wie sich insbesondere aus Fig. 2 ergibt, wobei in Gebrauchsstellung dieser Körper etwa vertikal ausgerichtet und im Aquariumbecken 11 gehalten ist. Das dritte Segment 70, insbesondere in Form des etwa kappenartigen Deckels, ist auf die Oberseite des zweiten Segments 60, nicht hingegen des ersten Segments 50, aufsetzbar, wobei es im aufgesetzten Zustand das zweite Segment 60 oberseitig bis auf die Höhe des etwa vertikalen, längeren L-Schenkels 52 des ersten Segments 50 verlängert. Bei einem nicht gezeigten Ausführungsbeispiel hat der Innenfilter einen langgestreckten und im wesentlichen runden und/oder eckigen, z.B. auch dreieckigen, Körper.The so assembled internal filter 10 has in the assembled state of these three segments 50, 60 and 70 an elongated and substantially quadrangular, in particular approximately rectangular or square, body, as can be seen in particular from FIG. 2, wherein in the use position this body is aligned approximately vertically and is held in the aquarium pool 11. The third segment 70, in particular in the form of the approximately cap-like cover, can be placed on the upper side of the second segment 60, but not on the first segment 50, with the second segment 60 on the upper side up to the height of the approximately vertical, longer one in the mounted state L-leg 52 of the first segment 50 extended. In an embodiment not shown, the internal filter has an elongated and essentially round and / or angular, e.g. also triangular, body.

Das dritte Segment 70 weist eine z. B. runde Kappe 71 auf, die den Druckkanal 40 etwa im Bereich seines oberen Endes 42 abschließt und zumindest eine Öffnung 72 enthält, die entsprechend der Ansicht in Fig. 4 z. B. als etwa umgekehrt U-förmiger Schlitz ausgebildet ist und die eingangs beschriebene Austrittsöffnung bildet, durch die das Wasser aus dem Druckkanal 40 austritt und in das Aquariumbecken 11 zurück gelangt. Die Kappe 71 hat eine z. B. etwa zylindrische Wandung 73 und ist mit dieser in das dritte Segment 70 eingesetzt und darin schwenkverstellbar gehalten, z. B. um einen Schwenkwinkel von z. B. maximal 70°. Dadurch bildet die Kappe 71 einen oberen Schwenkauslauf, wobei der Benutzer durch Drehverstellung der Kappe 71 die Auslaufrichtung vorgeben kann.The third segment 70 has a z. B. round cap 71, which closes the pressure channel 40 approximately in the region of its upper end 42 and contains at least one opening 72 which, according to the view in FIG. B. is formed as an approximately reverse U-shaped slot and forms the outlet opening described above, through which the water exits the pressure channel 40 and gets back into the aquarium tank 11. The cap 71 has a z. B. approximately cylindrical wall 73 and is inserted with this in the third segment 70 and held pivotally therein, for. B. by a pivot angle of z. B. maximum 70 °. As a result, the cap 71 forms an upper swivel spout, the user being able to specify the direction of the spout by rotating the cap 71.

Außerdem ist das dritte Segment 70 mit einer Einrichtung zur Steuerung des Volumenstromes versehen. Hierzu enthält das dritte Segment 70 z. B. einen den Durchlaßquerschnitt im Druckkanal 40, insbesondere im Übergangsbereich vom Druckkanal 40 zur Austrittsöffnung 41, steuernden Schieber 74, mittels dessen der Volumenstrom steuerbar ist. Der Schieber 74 greift quer in einen Rohrteil 75 des dritten Segments 70 ein und steuert dessen Durchlaßquerschnitt.In addition, the third segment 70 is provided with a device for controlling the volume flow. For this purpose, the third segment 70 contains z. B. a passage cross section in the pressure channel 40, in particular in the transition region from the pressure channel 40 to the outlet opening 41, controlling slide 74, by means of which the volume flow can be controlled. The slide 74 engages transversely in a tube part 75 of the third segment 70 and controls its passage cross section.

Am Schieber 74 greift eine von außen faßbare, in gleicher Schieberichtung betätigbare Verstellhandhabe 76 an, die im dritten Segment 70 querverschiebbar gehalten ist. Das dritte Segment 70 ist als einstückiges Kunststofformteil ausgebildet, in das die Kappe 71 und der querverschiebliche Schieber 74 mitsamt Verstellhandhabe 76 auswechselbar eingesetzt sind. Das dritte Segment 70 ist z. B. mittels Steckverbindung mit dem oberen Ende des zweiten Segments 60 verbindbar. Dabei greift der Rohrteil 75 in das oben offene Ende 42 des Druckkanals 40 ein, unter Herstellung einer zumindest im wesentlichen dichten Verbindung.The slide 74 is engaged by an adjustment handle 76 which can be gripped from the outside and can be actuated in the same slide direction and which is held in the third segment 70 so as to be displaceable. The third segment 70 is designed as a one-piece plastic molded part, into which the cap 71 and the displaceable slide 74, together with the adjusting handle 76, are interchangeably inserted. The third segment 70 is e.g. B. connectable by means of a plug connection to the upper end of the second segment 60. The pipe part 75 engages in the open top 42 of the pressure channel 40, producing an at least substantially tight connection.

Wie insbesondere aus Fig. 1 ersichtlich ist, weist das dritte Segment 70 mindestens einen Fortsatz, beim gezeigten Ausführungsbeispiel zwei Fortsätze 77, 78, auf, von denen jeder mit die Ansaugöffnungen 32 bildenden Öffnungen 79 bzw. 80, z. B. etwa vertikal gerichteten Schlitzen, versehen ist, wobei jeder Fortsatz 77, 78 von den Öffnungen 79 bzw. 80 in den Saugkanal 30, insbesondere zunächst in die Filterkammer 31, überleitet. Die beiden Fortsätze 77,78 befinden sich auf der in Fig. 1 und 2 nach links gerichteten Vorderseite 81 und stehen dort etwas über. Dabei verlaufen die Fortsätze 77, 78 in Abstand voneinander und etwa parallel zueinander, wobei sie jeweils gleichartig gestaltet sind. Jeder Fortsatz 77, 78 übergreift das zweite Segment 60 an dessen zugewandtem oberen Ende auf der entsprechenden Vorderseite 61 dieses.As can be seen in particular from FIG. 1, the third segment 70 has at least one extension, in the exemplary embodiment shown two extensions 77, 78, each of which has openings 79 and 80, e.g. B. approximately vertically directed slots is provided, each extension 77, 78 from the openings 79 and 80 in the suction channel 30, in particular first in the filter chamber 31, transferred. The two projections 77, 78 are located on the front 81 directed to the left in FIGS. 1 and 2 and protrude somewhat there. The extensions 77, 78 run at a distance from one another and approximately parallel to one another, with each being designed in the same way. Each extension 77, 78 engages over the second segment 60 at its facing upper end on the corresponding front side 61 thereof.

Die die Austrittsöffnung 41 bildende Öffnung 72 in der Kappe 71, insbesondere in deren Wandung 73, beim dritten Segment 70 ist auf der gleichen Vorderseite 81 wie die mittels der beidseitigen Fortsätze 77, 78 gebildeten, Ansaugöffnungen 32 formenden Öffnungen 79 bzw. 80 vorgesehen, jedoch mit Abstand oberhalb davon, so daß eine deutliche vertikale Trennung zwischen der Austrittsöffnung 41 einerseits und den Ansaugöffnungen 32 andererseits gegeben ist.The opening 72 forming the outlet opening 41 in the cap 71, in particular in its wall 73, in the third segment 70 is provided on the same front 81 as the openings 79 and 80 forming the suction openings 32 and formed by means of the extensions 77, 78 on both sides, however at a distance above it, so that there is a clear vertical separation between the outlet opening 41 on the one hand and the suction openings 32 on the other.

Nachfolgend sind Einzelheiten des ersten Segments 50 erläutert. Dieses ist mit Vorzug als einstückiges Kunststofformteil gestaltet, in das der Stator 18 mit elektrischer Zuleitung 20 eingesetzt ist. Die Rückseite 12 des längeren, etwa vertikalen L-Schenkels 52 bildet die Befestigungsseite, an der Halter 15, z. B. Sauger, zur lösbaren Anbringung an der Innenseite 13 der Aquariumwand 14 angeordnet sind. In diesr Rückseite 12 ist eine etwa rinnenförmige Aufnahme 53 enthalten, in der die elektrische Zuleitung 20 nach oben geführt ist. Der Stator 18 des Elektromotors 17 ist im unteren Teil des ersten Segments 50 enthalten, insbesondere im etwa horizontalen, kürzeren L-Schenkel 51 und/oder Übergangsbereich beider Schenkel 51, 52 ineinander, wo entsprechend Platz vorhanden ist. Der Stator 18 ist im ersten Segment 50 befestigt und dabei mit wasserdichtem Abschluß. Der den Rotor 19 aufnehmende Durchlaß 21 im Stator 18 ist im wesentlichen vertikal gerichtet.Details of the first segment 50 are explained below. This is preferably designed as a one-piece plastic molded part, in which the stator 18 with the electrical lead 20 is inserted. The back 12 of the longer, approximately vertical L-leg 52 forms the fastening side on the holder 15, for. B. sucker, are arranged for releasable attachment to the inside 13 of the aquarium wall 14. This rear side 12 contains an approximately groove-shaped receptacle 53 in which the electrical feed line 20 is guided upwards. The stator 18 of the electric motor 17 is contained in the lower part of the first segment 50, in particular in the approximately horizontal, shorter L-leg 51 and / or transition region of the two legs 51, 52 into one another, where there is corresponding space. The stator 18 is fastened in the first segment 50 and with a watertight seal. The passage 21 in the stator 18 receiving the rotor 19 is directed essentially vertically.

Mit einer etwa vertikal verlaufenden vorderen Wandung 54 des ersten Segments 50, die in Abstand von der Rückseite 12 verläuft, bildet das erste Segment 50 eine rückseitige Wandungsbegrenzung des Saugkanals 30, der somit beim Abziehen des zweiten Segments 60 vom an der Aquariumwand 14 verbleibenden ersten Segment 50 freilegbar ist. Ersichtlich bildet diese vordere Wandung 54 im unteren Bereich 55, der etwa bis zum etwa horizontalen, kürzeren L-Schenkel des ersten Segments 50 führt, einen Teil der Wandungsbegrenzung der Pumpenkammer 26, in die eine Schrägwand 56 überleitet.With an approximately vertical front wall 54 of the first segment 50, which runs at a distance from the rear side 12, the first segment 50 forms a rear wall limitation of the suction channel 30, which thus when the second segment 60 is removed from the first segment remaining on the aquarium wall 14 50 is exposed. As can be seen, this front wall 54 in the lower region 55, which leads approximately to the approximately horizontal, shorter L-leg of the first segment 50, forms part of the wall boundary of the pump chamber 26, into which an inclined wall 56 leads.

Das zweite Segment 60 ist ebenfalls als einstückiges Kunststofformteil ausgebildet, in das der Rotor 19 mitsamt Lagerachse 22 und Lagern 23, 24 sowie Pumpenrad 25 und ggf. mindestens ein Filtereinsatz 34 auswechselbar eingesetzt sind.The second segment 60 is also designed as a one-piece molded plastic part, in which the rotor 19 together with the bearing axis 22 and bearings 23, 24 and the pump wheel 25 and possibly at least one filter insert 34 are interchangeably inserted.

Das zweite Segment 60 ist um die Höhe des dritten Segments 70 und um die Höhe des etwa horizontalen kürzeren L-Schenkels 51 des ersten Segments 50 kürzer und um die Tiefe des etwa vertikalen L-Schenkels 52 schmaler als das erste Segment 50 bemessen. Die Bemessung ist derart gewählt, daß das zweite Segment 60 - auf den nach vorn hin überstehenden Teil des etwa horizontalen kürzeren L-Schenkels 51 des ersten Segments 50 aufgesetzt - das erste Segment 50 zu einem im Querschnitt im wesentlichen viereckigen, insbesondere etwa rechteckigen oder quadratischen, Körper ergänzt, wie Fig. 2 zeigt.The second segment 60 is shorter by the height of the third segment 70 and the height of the approximately horizontal shorter L-leg 51 of the first segment 50 and narrower by the depth of the approximately vertical L-leg 52 than the first segment 50. The dimensioning is selected such that the second segment 60 - placed on the part of the approximately horizontally shorter L-leg 51 of the first segment 50 projecting towards the front - the first segment 50 to a cross section which is essentially quadrangular, in particular approximately rectangular or square , Body supplemented, as Fig. 2 shows.

Das zweite Segment 60 weist einen durch bis in die Pumpenkammer 26 führende Wände 62, 63 abgeschlossenen, etwa L-förmigen Innenkanal auf, der den Druckkanal 40 bildet und dessen etwa vertikaler, längerer L-Schenkel vorderseitig verläuft und dessen etwa horizontaler, kürzerer L-Schenkel sich zur Rückseite hin unter Bildung der Pumpenkammer 26 erstreckt und unten im Bodenbereich verläuft. Dadurch ist im Inneren des zweiten Segments 60 angrenzend an die innen verlaufende Wand 63 die Filterkammer 31 geschaffen, die somit durch die innenseitig verlaufende Wand 63, ferner durch die übrigen Bereiche der daran angrenzenden Vorderwand 64 und durch zwei zueinander etwa parallele Seitenwände 65 begrenzt ist. Das zweite Segment 60 weist auf seiner Rückseite, die der vorderen Wandung 54 des ersten Segments 50 zugewandt ist, einen hochragenden Wandteil 66 auf, der sich etwa über die halbe Höhe des zweiten Segments 60 erstreckt und die Filterkammer 31 begrenzt. Der Wandteil 66 begrenzt außerdem mit seiner Rückseite einen entsprechenden Abschnitt des Saugkanals 30, der im betriebsfähigen Zustand des Innenfilters 10 durch die zum ersten Segment 50 gehörige vordere Wand 54 rückseitig begrenzt ist.The second segment 60 has an approximately L-shaped inner channel, which is closed by walls 62, 63 leading into the pump chamber 26, which forms the pressure channel 40 and whose approximately vertical, longer L-leg extends on the front side and whose approximately horizontal, shorter L- Leg extends to the rear to form the pump chamber 26 and extends below in the bottom area. As a result, the filter chamber 31 is created in the interior of the second segment 60 adjacent to the inner wall 63, which is thus delimited by the inner wall 63, further by the remaining areas of the front wall 64 adjacent thereto and by two approximately parallel side walls 65. On its rear side, which faces the front wall 54 of the first segment 50, the second segment 60 has a protruding wall part 66 which extends approximately over half the height of the second segment 60 and delimits the filter chamber 31. The wall part 66 also delimits with its rear side a corresponding section of the suction channel 30, which is bounded on the rear side by the front wall 54 belonging to the first segment 50 when the inner filter 10 is in an operational state.

Ferner enthält das zweite Segment 60 einen Bodenteil 67, der einstückig an die Wand 63 und den rückseitigen Wandteil 66 angeschlossen ist und in Querrichtung von der einen Seitenwand 65 zur anderen Seitenwand 65 reicht. Die nach oben weisende Seite des Bodenteils 67 bildet den Boden der Filterkammer 31, während die nach unten weisende Seite eine oberseitige Begrenzung der Pumpenkammer 62 bildet. Der hochragende Wandteil 66 geht im Bogen oder, wie hier gezeigt ist, schräg in den Bodenteil 67 über, wobei der Schrägverlauf etwa demjenigen der rückseitig in Abstand davon verlaufenden Schrägwand 56 am ersten Segment 50 entspricht. In Verlängerung dieser Schrägwand 56 erstreckt sich ein kurzes schräges Wandstück 68, das von einer Seitenwand 65 bis zur anderen Seitenwand 65 reicht und ebenfalls einstückiger Teil des Segments 60 ist. Das Wandstück 68 setzt somit den Schrägverlauf der Schrägwand 56 fort und komplettiert damit den schräg nach unten gerichteten Überleitungsabschnitt, über den der Saugkanal 30 mit der Pumpenkammer 26 verbunden ist.Furthermore, the second segment 60 contains a base part 67 which is connected in one piece to the wall 63 and the rear wall part 66 and extends in the transverse direction from one side wall 65 to the other side wall 65. The upward-facing side of the bottom part 67 forms the bottom of the filter chamber 31, while the downward-facing side forms an upper-side boundary of the pump chamber 62. The protruding wall part 66 merges with the arch or, as shown here, obliquely into the bottom part 67, the inclined course roughly corresponding to that of the oblique wall 56 on the first segment 50, which runs at a distance from the rear side thereof. In the extension of this inclined wall 56, a short inclined wall section 68 extends, which extends from one side wall 65 to the other side wall 65 and is also an integral part of the segment 60. The wall piece 68 thus continues the inclined course of the inclined wall 56 and thus completes the diagonally downward transfer section via which the suction channel 30 is connected to the pump chamber 26.

Im Bereich des Bodenteils 67 ist ein in die Filterkammer 31 eingebrachter Filtereinsatz 34 mit seinem unteren Ende in Abstand oberhalb des Bodenteils 67 gehalten. Dies hat den Vorteil, daß etwaige abgefilterte Schmutzpartikel od. dgl. sich in diesem unteren Bereich sammeln können. Der zumindest etwa über die halbe Höhe des zweiten Segments 60 nach oben gerichtete Wandteil 66 hat noch den Vorteil, daß er zusammen mit den Seitenwänden 65 und der inneren Wand 63 sowie den beidseitig davon verlaufenden Bereichen der Vorderwand 64 eine Wanne mit entsprechender Höhe bildet, in der z. B. beim Herausziehen des Filtereinsatzes 34 nach oben hin Wasser verbleibt, das im zweiten Segment 60 und auch im Filtereinsatz 34 enthalten ist und mit Schmutzpartikeln beladen sein kann. Damit ist gewährleistet, daß beim Wechsel des Filtereinsatzes 34 in dieser beschriebenen Wanne befindliches und evtl. verunreinigtes Wasser dort gefangen bleibt und nicht in das Aquariumbecken 11 auslaufen kann.In the area of the bottom part 67, a filter insert 34 introduced into the filter chamber 31 is held at a distance above the bottom part 67 with its lower end. This has the advantage that any filtered dirt particles or the like can collect in this lower area. The at least about half the height of the second segment 60 upward wall part 66 has the advantage that it forms a tub with a corresponding height together with the side walls 65 and the inner wall 63 and the areas of the front wall 64 running on both sides thereof the z. B. when pulling the filter insert 34 upward water remains, which is contained in the second segment 60 and also in the filter insert 34 and can be loaded with dirt particles. This ensures that when the filter insert 34 is changed and any contaminated water present in the tub described above remains trapped there and cannot leak into the aquarium tank 11.

Zur vertikalen Abstandshalterung des Filtereinsatzes 34 dienen z. B. hochragende Vorsprünge 69, z. B. Stege, auf denen der Filtereinsatz 34 in der Filterkammer 31 aufsitzt.For vertical spacing of the filter insert 34 z. B. protruding projections 69, z. B. webs on which the filter insert 34 is seated in the filter chamber 31.

Der Bodenteil 67 des zweiten Segments 60 weist eine nach oben und zur Filterkammer 31 hin gerichtete, im Querschnitt etwa umgekehrt U-förmige Ausstülpung 90 auf, in der das obere Lager 23, z. B. eine Gummitülle, für das obere Ende der Lagerachse 22 des Rotors 19 aufgenommen ist. Auch diese Austülpung 90 bildet mit ihrer zur Filterkammer 31 weisenden Oberwand einen dem Vorsprung 69 entsprechenden Vorsprung, der als Abstandshalter unterseitig des darauf aufsitzenden Filtereinsatzes 34 dienen kann.The bottom part 67 of the second segment 60 has an upwardly directed and towards the filter chamber 31, in cross section approximately U-shaped protuberance 90, in which the upper bearing 23, z. B. a rubber grommet is added for the upper end of the bearing axis 22 of the rotor 19. This protuberance 90 also forms with its upper wall facing the filter chamber 31 a projection corresponding to the projection 69, which can serve as a spacer on the underside of the filter insert 34 seated thereon.

Der Druckkanal 40 ist als Innenkanal im zweiten Segment 60 gestaltet, der von der Filterkammer 31 abgetrennt ist. Dieser Innenkanal ist zum einen durch die vorderseitige Wand 62 nach außen begrenzt, die als zumindest geringfügig etwa balkonartig nach vorn vorstehender Wandstreifen gestaltet ist, der etwa im mittleren Bereich der Vorderseite 61 des zweiten Segments 60 von oben nach unten und zwischen den beidseitig daran anschließenden Vorderwänden 64 verläuft. Nach innen ist der Innenkanal durch die innere Wand 63 begrenzt, die nach innen zur Filterkammer 31 hin vorgewölbt ist und die sich etwa über die Breite der äußeren Wand 62 erstreckt und mit ihren Seitenrändern von innen her bis an die Wand 62 unter Bildung eines abgeschlossenen Kanals heranreicht. Beide Wände 62 und 63 begrenzen somit einen inneren Rohrkanal, der in Bezug auf die Filterkammer 31 bis hin zur Pumpenkammer 26 abgeschlossen ist.The pressure channel 40 is designed as an inner channel in the second segment 60, which is separated from the filter chamber 31. This inner channel is delimited on the one hand by the front wall 62, which is designed as an at least slightly protruding wall strip that protrudes forward in the manner of a balcony, which stretches from top to bottom in the central region of the front 61 of the second segment 60 and between the front walls adjoining it on both sides 64 runs. The inner channel is delimited on the inside by the inner wall 63, which bulges inwards towards the filter chamber 31 and which extends approximately over the width of the outer wall 62 and with its side edges from the inside to the wall 62 to form a closed channel reaches. Both walls 62 and 63 thus delimit an inner tube channel which is closed with respect to the filter chamber 31 up to the pump chamber 26.

Das zweite Segment 60 weist außerdem im Bereich unterhalb der Pumpenkammer 26 eine nach unten vorstehende Haltevorrichtung 91 auf, an der der Rotor 19 mitsamt der Lagerachse 22 und den Lagern 23 und 24 gehalten ist. Beim Aufsetzen des zweiten Segments 60 auf den etwa horizontalen kürzeren L-Schenkel 51 des ersten Segments 50 taucht diese Haltevorrichtung 91 in das Innere 57 dieses Schenkels 51 des ersten Segments 50 derart ein, daß der Rotor 19 darin aufgenommen wird und hierbei in den Durchlaß 21 des Stators 18 hineingelangt. Die Haltevorrichtung 91 weist einen nach unten vorstehenden Tragteil 92 und daran eine untere Lagerkappe 93 auf, in der das untere Lager 24, z. B. eine Gummitülle, für das untere Ende der Lagerachse 22 des Rotors 19 aufgenommen ist. Der Rotor 19 mit Lagerachse 22 und beidseitigen Lagern 23 und 24 ist auf diese Weise allein im zweiten Segment 60 gehalten, wobei das Pumpenrad 25 am oberen, in die Pumpenkammer 26 hinein vorstehenden Ende des Rotors 19 gehalten ist.The second segment 60 also has, in the region below the pump chamber 26, a holding device 91 which projects downward and on which the rotor 19 together with the bearing axis 22 and the bearings 23 and 24 is held. When the second segment 60 is placed on the approximately horizontal, shorter L-leg 51 of the first segment 50, the latter dips Holding device 91 into the interior 57 of this leg 51 of the first segment 50 in such a way that the rotor 19 is received therein and in this way reaches the passage 21 of the stator 18. The holding device 91 has a downwardly projecting support part 92 and thereon a lower bearing cap 93, in which the lower bearing 24, for. B. a rubber grommet is added for the lower end of the bearing axis 22 of the rotor 19. The rotor 19 with the bearing axis 22 and bearings 23 and 24 on both sides is held in this way only in the second segment 60, the pump wheel 25 being held at the upper end of the rotor 19 projecting into the pump chamber 26.

Ist der Innenfilter 10 betriebsfertig zusammengesetzt, wie Fig. 2 und 3 zeigen, und in beschriebener Weise in das Aquariumbecken 11 eingesetzt und an der Aquariumwand 14 befestigt, so wird bei eingeschaltetem Innenfilter 10 das Pumpenrad 25 vom Rotor 19 in einer Drehrichtung angetrieben. Dadurch wird Wasser aus dem Inneren des Aquariumbeckens 11 über die Ansaugöffnungen 32 in Form insbesondere der Öffnungen 79, 80, insbesondere Schlitze, an den Fortsätzen 77, 78 in die Filterkammer 31 und durch den darin befindlichen Filtereinsatz 34 quer hindurch gesaugt, wobei das Wasser durch den Saugkanal 30 und die Pumpenkammer 26 in den abgeschlossenen inneren Druckkanal 40 gelangt und durch diesen hochsteigt und am oberen Ende des Innenfilters 10 durch die Austrittsöffnung 41, insbesondere die schlitzförmige Öffnung 72 in der Kappe 71, entsprechend dem Pfeil in Fig. 2 abgegeben wird und wieder in das Aquariumbecken 11 gelangt. Bei diesem Umlauf des Wassers wird dieses im Innenfilter 10 durch Filtrierung gereinigt. Bedarfsweise kann auch eine elektrische Heizeinrichtung zur Beheizung integriert sein.If the internal filter 10 is assembled ready for operation, as shown in FIGS. 2 and 3, and inserted in the described manner into the aquarium tank 11 and attached to the aquarium wall 14, the pump wheel 25 is driven by the rotor 19 in one direction of rotation when the internal filter 10 is switched on. As a result, water is sucked transversely from the inside of the aquarium tank 11 through the suction openings 32 in the form of, in particular, the openings 79, 80, in particular slots, at the extensions 77, 78 into the filter chamber 31 and through the filter insert 34 therein, the water passing through the suction channel 30 and the pump chamber 26 enters the closed inner pressure channel 40 and rises through it and is discharged at the upper end of the inner filter 10 through the outlet opening 41, in particular the slot-shaped opening 72 in the cap 71, in accordance with the arrow in FIG. 2 and gets back into the aquarium tank 11. During this circulation of the water, it is cleaned in the internal filter 10 by filtration. If necessary, an electric heating device for heating can also be integrated.

Der elektrische Teil des Elektromotors 17 und die elektrische Zuleitung 20 sind so abgedichtet, daß ein etwaiger Kontakt mit Wasser mit Sicherheit ausgeschlossen ist.The electrical part of the electric motor 17 and the electrical feed line 20 are sealed so that any contact with water is excluded with certainty.

Von Zeit zu Zeit müssen einige Bestandteile des Innenfilters 10 gereinigt werden. Dies kann vom Benutzer schnell, einfach, ohne besondere Sachkenntnis und Spezialwerkzeuge in folgender Weise praktiziert werden. Bei ausgeschaltetem Elektromotor 17 zieht der Benutzer zunächst das dritte Segment 70 in Gestalt des oberen Deckels z. B. nach oben hin vom zweiten Segment 60 ab, wodurch das obere Ende des zweiten Segments 60 freigelegt wird.From time to time, some components of the inner filter 10 need to be cleaned. This can be practiced quickly, easily, without special knowledge and special tools by the user in the following way. When the electric motor 17 is switched off, the user first pulls the third segment 70 in the form of the upper cover z. B. upwards from the second segment 60, whereby the upper end of the second segment 60 is exposed.

Das so separierte dritte Segment 70 kann vom Benutzer problemlos gereinigt werden. Gewünschtenfalls kann dabei auch die Kappe 71 und/oder der Schieber 74 mit Verstellhandhabe 76 abgelöst werden, sofern auch in diesen Bereichen eine Reinigung gewünscht wird. Auch zu Zwecken des Austauschs bei Beschädigungen od. dgl. wird entsprechend vorgegangen.The third segment 70 thus separated can be easily cleaned by the user. If desired, the cap 71 and / or the slide 74 with the adjusting handle 76 can also be removed, provided that cleaning is also desired in these areas. The same procedure is also followed for the purpose of replacement in the event of damage or the like.

Soll nur der Filtereinsatz 34 entfernt und z. B. gereinigt werden, so greift der Benutzer von oben her in die Filterkammer 31 ein und zieht daraus den Filtereinsatz 34 heraus. Etwaiges abtropfendes Wasser sowie sonstiges, noch in der Filterkammer 31 befindliches Wasser, das jeweils mit etwaigen Schmutzpartikeln beladen sein kann, wird in beschriebener Weise innerhalb der Wanne in der Filterkammer 31 gesammelt und am Auslaufen oder Abtropfen in das Aquariumbecken 11 gehindert. Der entnommene Filtereinsatz 34 kann gereinigt oder gegen einen anderen ausgetauscht werden. Danach kann in umgekehrter Weise das dritte Segment 70 wieder aufgesetzt werden, so daß der Innenfilter 10 wieder betriebsbereit ist.If only the filter insert 34 is removed and z. B. cleaned, the user engages from above into the filter chamber 31 and pulls out the filter insert 34. Any dripping water as well as other water still in the filter chamber 31, which can be loaded with any dirt particles, is collected in the manner described in the tub in the filter chamber 31 and prevented from leaking or dripping into the aquarium tank 11. The removed filter insert 34 can be cleaned or exchanged for another. Thereafter, the third segment 70 can be replaced in the opposite manner, so that the internal filter 10 is ready for operation again.

Soll vorher auch das Innere des zweiten Segments 60 gereinigt werden, z. B. auch das Pumpenrad 25 und der daran angrenzende Bereich, so wird das zweite Segment 60 vom am Aquariumbecken 11 verbleibenden ersten Segment 50 abgelöst und aus dem Aquariumbecken 11 herausgenommen. Auch hierbei kann etwaiges Wasser, beladen mit Schmutzpartikeln, das sich innerhalb der Filterkammer 31 befindet, nicht in das Aquariumbecken 11 ablaufen und dieses verunreinigen.Should the interior of the second segment 60 also be cleaned beforehand, e.g. B. also the pump wheel 25 and the area adjoining it, the second segment 60 is detached from the first segment 50 remaining on the aquarium pool 11 and removed from the aquarium pool 11. In this case too, any water loaded with dirt particles, which is located within the filter chamber 31, cannot run into the aquarium tank 11 and contaminate it.

Beim Herausnehmen des zweiten Segments 60 wird zugleich der Rotor 19 mit Lagerachse 22 und Lagern 23 und 24 vom ersten Segment 50 getrennt und nach oben abgezogen, so daß auch sämtliche Bestandteile des Rotors einschließlich des Pumpenrades 25 nunmehr frei zugänglich sind. Auch das Innere der Pumpenkammer 26 ist dann von außen zugänglich, weil der die Pumpenkammer 26 am in Fig. 3 rechten Ende begrenzende untere Bereich 55 Bestandteil des ersten Segments 50 ist und im Aquariumbecken 11 bei dieser Trennung verbleibt. Auch der Wandteil 66 des Saugkanals 30 wird frei zugänglich, da die andere, den Saugkanal begrenzende vordere Wandung 54 als Teil des ersten Segmentes 50 im Aquariumbecken 11 verbleibt.When the second segment 60 is removed, the rotor 19 with the bearing axis 22 and bearings 23 and 24 is at the same time separated from the first segment 50 and pulled upwards, so that all components of the rotor including the pump wheel 25 are now freely accessible. The inside of the pump chamber 26 is then also accessible from the outside because the lower region 55, which delimits the pump chamber 26 at the right end in FIG. 3, is part of the first segment 50 and remains in the aquarium tank 11 during this separation. The wall part 66 of the suction channel 30 is also freely accessible, since the other front wall 54 delimiting the suction channel remains in the aquarium tank 11 as part of the first segment 50.

Bei herausgenommenem zweiten Segment 60 kann der gesamte Rotor 19 mit Lagerachse 22 und Lagern 23 und 24 und mit Pumpenrad 25 gereinigt, gewartet und bedarfsweise ersetzt werden. Auch das Innere der Filterkammer 31 läßt sich dann bei entnommenem Filtereinsatz 34 problemlos reinigen. Soll der Innenfilter 10 wieder zum betriebsbereiten Körper zusammengesetzt werden, wird in umgekehrter Weise vorgegangen, was ebenfalls schnell und problemlos vonstatten geht.With the second segment 60 removed, the entire rotor 19 with the bearing axis 22 and bearings 23 and 24 and with the impeller 25 can be cleaned, serviced and, if necessary, replaced. The interior of the filter chamber 31 can then be easily cleaned with the filter insert 34 removed. If the internal filter 10 is to be put together again to form the ready-to-use body, the procedure is reversed, which is also quick and easy.

Bei einer anderen, nicht gezeigten Ausführungsform sind die Ansaugöffnungen 32 nicht im dritten Segment 70 enthalten sondern es sind auf der Vorderseite der Brustwandung des ersten Segments 60 Ansaugbereiche, z.B. durch dortige Stege und Kanäle dazwischen, gebildet, die oben vom zweiten Segment 60 übergriffen sind, wodurch eine Verbindung mit der Filterkammer 31 und dem Saugkanal 30 hergestellt ist.In another embodiment, not shown, the suction openings 32 are not contained in the third segment 70, but suction areas are formed on the front side of the chest wall of the first segment 60, for example by webs and channels there between, which are overlapped by the second segment 60 at the top are, whereby a connection with the filter chamber 31 and the suction channel 30 is established.

Claims (34)

  1. Inside filter for aquariums with an electric motor (17), which has a rotor (19) driving a pump impeller (25) in a pump chamber (26) and a stator (18) with a suction port (30) connected on one side to the pump chamber (26) and on the other side to a filter chamber (31) into which water can be suctioned through at least one suction opening (32), and with a pressure channel (40) which is connected on one side to the pump chamber (26) and on the other side to at least one outlet opening (41)
    characterised by
    three segments (50, 60, 70) which can be disconnected from one another or put together again, of which the first segment (50) contains the stator (18) with electrical supply cable (20) and the second segment (60) contains the rotor (19) together with the bearing axle (22) and bearings (23, 24), the pump impeller (25), pump chamber (26), filter chamber (31), the suction port (30) and the pressure channel (40) and the third segment (70) is designed to fit onto the second segment (60) as a sealing lid and has at least one outlet opening (41) which can be connected to the pressure channel (40), wherein the at least one suction opening (32) which can be connected to the filter chamber (31) is provided in the region of the third segment (70) or the first segment (50).
  2. Inside filter according to claim 1,
    characterised in that
    the third segment (70) has a cover (71) which seals the pressure channel (40) and has at least one opening (72) forming the outlet opening (41) and in that the part of the cover (71) containing the opening (72), e.g. its wall (73) can be pivot adjusted.
  3. Inside filter according to claim 1 or 2,
    characterised in that
    the third segment (70) has a gate (74) controlling the cross-section of the opening in the pressure channel (40), in particular in the transition region from the pressure channel (40) to the outlet opening (41) by means of which volume flow can be controlled.
  4. Inside filter according to one of claims 1 to 3,
    characterised in that
    the third segment (70) has at least one extension (77, 78) furnished with openings (79, 80), in particular slots, forming the suction openings (32) which extension passes from the openings (79, 80) into the suction channel (30) in particular into the filter chamber (31) first.
  5. Inside filter according to claim 4
    characterised in that
    the third segment (70) has on one side, in particular on the front (81), two similar extensions (77, 78) at a distance from one another and roughly in parallel.
  6. Inside filter according to one of claims 1 to 5,
    characterised in that
    the at least one extension (77, 78) of the third segment (70) overlaps the second segment (60) on one side at the assigned upper end, in particular the front side (61).
  7. Inside filter according to one of claims 1 to 6,
    characterised in that
    the opening (72) forming the outlet opening (41) in the cover (71), in particular in its wall (73), is provided on the third segment (70) on the same side, in particular the front (81), of the third segment (70) like the at least one suction opening (32), in particular the openings (79, 80) in the extension (77, 78), but at a distance thereabove
  8. Inside filter according to one of claims 1 to 7,
    characterised by
    a body longitudinally extended and basically round and/or angular, in particular polygonal, e.g. quadrangular, i.e. rectangular or quadratic, which is formed when the three segments (50, 60, 70) are assembled.
  9. Inside filter according to one of claims 1 to 8,
    characterised in that
    the first segment (50) is designed in side view to be roughly L-shaped, whereby the back (12) of the roughly vertical longer L-arm (52) forms the attachment side, whereby the inside filter (10), in particular the body, can be fixed to the inside (13) of an aquarium wall (14).
  10. Inside filter according to one of claims 1 to 9,
    characterised by
    attaching devices (15) on the back, in particular on the back (12) of the first segment (50), preferably suction pads for detachably fixed to an aquarium wall (14).
  11. Inside filter according to one of claims 1 to 10,
    characterised in that
    the first segment (50) has, in particular on the back, a grooved recess (53) which guides the electric cable (20) upwards.
  12. Inside filter according to one of claims 1 to 11,
    characterised in that
    the first segment (50) contains the stator (18) of the electric motor (17) in its lower section, in particular in the roughly horizontal shorter L-arm (51) and/or junction region of both L-arms (51, 52), of which segment the opening (21) accommodating the rotor (19) is essentially vertical and preferably, in that suction pads, e.g. webs with channels in between are formed on the lower part of the first segment (50), which are connected to the filter chamber (31) and/or the suction port (30).
  13. Inside filter according to one of claims 1 to 12
    characterised in that
    the first segment (50), with a roughly vertical front wall boundary (54) at a distance from its rear side (12), forms a wall boundary of the suction port (30) which can be uncovered on removing the second segment (60).
  14. Inside filter according to claim 13,
    characterised in that
    the front wall (54) of the first segment (50) in the lower region (55), which leads to the roughly horizontal shorter L-arm (51), forms part of a wall boundary of the pump chamber (26).
  15. Inside filter according to one of claims 1 to 14,
    characterised in that
    the second segment (60) is shorter by the height of the third segment (70) and the roughly horizontal, shorter L-arm (51) of the first segment (50) and narrower by the depth of the roughly vertical, longer L-arm (52) than the first segment (50) and is proportioned so that - fitted on the projecting part of the roughly horizontal shorter L-arm (51) of the first segment (50) - it completes the first segment (50) to form a body roughly rectangular in cross-section, that is in particular rectangular or quadratic.
  16. Inside filter according to one of claims 1 to 15,
    characterised in that
    the third segment (70) in particular the lid, can be fitted on the upper side of the second segment (60) and this extends up to the level of the roughly vertical, longer L-arm (52) of the first segment (50).
  17. Inside filter according to one of claims 1 to 16,
    characterised in that
    the second segment (60) has an inside channel sealed by walls (62, 63) leading into the pump chamber (26), roughly L-shaped and forming the pressure channel (40), the roughly vertical L-arm of which is at the front and the roughly horizontal L-arm of which is at the bottom and in that the bordering region inside the second segment (60) forms the filter chamber (31).
  18. Inside filter according to one of claims 1 to 17
    characterised in that
    the second segment (60) on its rear side facing the front wall (54) of the first segment (50), has an upwards projecting wall (66) bordering the filter chamber (31) which borders a section of the suction port (30).
  19. Inside filter according to one of claims 1 to 18,
    characterised in that the second segment (60) contains a base part (67) the upper side of which borders the base of the filter chamber (31) and the downwards facing side of which borders the pump chamber (26).
  20. Inside filter according to claim 18 or 19,
    characterised in that
    the upwards projecting wall (66) passes in a curve or diagonally into the base part (67).
  21. Inside filter according to one of claims 17 to 20,
    characterised in that
    the inner channel forming the pressure channel (40) is formed by a front wall (62), in particular a at least slightly balcony-like projecting wall strip and an inner wall (63) extending over the width of this front wall (62) and connecting thereto, which together border a pipe channel sealed off from the filter chamber (31) up to the pump chamber (26).
  22. Inside filter according to one of claims 1 to 21,
    characterised in that
    the third segment (70) in particular the lid engages with a pipe section (75) open downwards in the upper open end (42) of the pressure channel (40) in particular the inner channel of the second segment (60).
  23. Inside filter according to one of claims 3 to 22,
    characterised in that
    the gate (74) on the third segment (70) engages diagonally in the pipe section (75) and controls its opening cross-section.
  24. Inside filter according to one of claims 1 to 23,
    characterised in that
    the second segment (60) has a fastening device (91) projecting downwards to which the rotor (19) with bearings (23, 24) is fixed and which on placing the second segment (60) on the roughly horizontal shorter L-arm (51) of the first segment (50) is submerged inside (57) this L-arm (51) so that the rotor (19) flows in the opening (21) of the stator (18).
  25. Inside filter according to claim 24,
    characterised in that
    the fastening device (91) has a lower bearing cover (93) in which the lower bearing (24), e.g. a rubber socket is accommodated for the lower end of the bearing axle (22) of the rotor (19).
  26. Inside filter according to one of claims 1 to 25,
    characterised in that
    the base part (67) of the second segment (60) has a protuberance (90) directed upwards towards the filter chamber (31) in which the upper bearing (23), e.g. a rubber socket is accommodated for the upper end of the bearing axle (22) of the rotor (19).
  27. Inside filter according to one of claims 1 to 26,
    characterised in that
    the pump impeller (25) is disposed at the upper end of the rotor (19) projecting into the pump chamber (26) and is contained in the pump chamber (26) over the rotor (19).
  28. Inside filter according to one of claims 1 to 27,
    characterised in that
    the filter chamber (31) of the second segment (60) is bordered on both sides by its external side walls (65).
  29. Inside filter according to one of claims 1 to 28,
    characterised in that
    the at least one filter insert (34) is contained in the filter chamber (31) which is fixed by its lower end at a distance above the base part (67).
  30. Inside filter according to one of claims 1 to 29,
    characterised in that
    the base part (67) of the filter chamber (31) has upwards projecting projections (69, 90), e.g. webs, on which a filter insert (34) rests in the filter chamber (31).
  31. Inside filter according to one f claims 26 to 30,
    characterised in that
    the protuberance (90) forms a projection with its upper wall pointing to the filter chamber (31) on which a filter insert (34) rests in the filter chamber (31).
  32. Inside filter according to one of claims 1 to 31,
    characterised in that
    the first segment (50) is a plastic one-piece moulded part into which the stator (18) of the electric motor (17) with electrical supply cable (20) is removably inserted.
  33. Inside filter according to one of claims 1 to 32,
    characterised in that
    the second segment (60) is a plastic one-piece moulded part in which the rotor (19) together with the bearing axle (22) and bearings (23, 24) and pump impeller (25) and if necessary at least one filter insert (34) are removably inserted.
  34. Inside filter according to one of claims 1 to 33,
    characterised in that
    the third segment (70) is a plastic one-piece moulded part in which the pivot adjustable cover (71) and/or the laterally displaceable gate (74) are inserted together with an adjusting manipulation device (76).
EP92119943A 1992-02-29 1992-11-24 Inside filter for aquarium Expired - Lifetime EP0558807B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4206425A DE4206425A1 (en) 1992-02-29 1992-02-29 INTERNAL FILTER FOR AQUARIUS
DE4206425 1992-02-29

Publications (2)

Publication Number Publication Date
EP0558807A1 EP0558807A1 (en) 1993-09-08
EP0558807B1 true EP0558807B1 (en) 1996-02-21

Family

ID=6452956

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92119943A Expired - Lifetime EP0558807B1 (en) 1992-02-29 1992-11-24 Inside filter for aquarium

Country Status (5)

Country Link
US (1) US5277800A (en)
EP (1) EP0558807B1 (en)
JP (1) JPH0817898B2 (en)
CA (1) CA2086584C (en)
DE (2) DE4206425A1 (en)

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IT1270341B (en) * 1993-04-07 1997-05-05 Hydor Srl DEVICE FOR EXTERNAL FILTRATION, PARTICULARLY FOR AQUARIUMS AND ORNAMENTAL TANKS
DE4410562A1 (en) * 1994-03-26 1995-09-28 Eheim Gmbh & Co Kg Filters for aquariums
US5584991A (en) * 1995-01-31 1996-12-17 Wittstock; Gary G. Filtration system for ponds
US5585010A (en) * 1995-06-19 1996-12-17 Dockery; Daryl Aquatic tank filtering system
US6202677B1 (en) * 1998-05-04 2001-03-20 Chi Chung Chen Multi-functional cleaning and filtering system for aquarium tank
US6461501B1 (en) 2001-05-11 2002-10-08 Hardscape Materials, Inc. Ornamental pond skimmer and filter apparatus
US6527949B1 (en) 2001-05-15 2003-03-04 Hedberg Aggregates, Inc. Landscaping pond system
FR2830203B1 (en) * 2001-10-01 2004-09-24 Piscines Waterair FILTER STRUCTURE WITH ELECTRIC PUMP FOR POOL
US6979401B1 (en) 2003-01-15 2005-12-27 Porter C Bradley Pond skimmer apparatus
DE10332385A1 (en) 2003-07-17 2005-02-17 Braun Gmbh Razor cleaning device, comprising particularly coarse filter for avoidance of blocking by fine particles
EP1584231B1 (en) * 2004-04-05 2007-03-28 Askoll Holding S.r.l. Method of filtering water of an aquarium, and corresponding filtering system
US7162831B1 (en) * 2004-12-02 2007-01-16 Morton Timothy L Fish bait system
US8197681B2 (en) * 2009-02-05 2012-06-12 K&H Manufacturing, Llc Submersible filter system for stock tanks and ornamental ponds
US8679330B2 (en) * 2009-12-17 2014-03-25 Central Garden And Pet Company Integrated aquarium filter assembly including filter media components and an upstream water pump
US10780853B2 (en) * 2012-10-01 2020-09-22 Allison Transmission, Inc. External lube system for a transmission
US10085431B1 (en) * 2017-03-31 2018-10-02 PetSmart Home Office, Inc. Aquarium and non-disruptive filtration system
CN110013694B (en) * 2019-03-07 2021-05-04 新昌县铎瞿环保科技有限公司 High-concentration desulfurization organic pharmaceutical wastewater treatment equipment

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US4512724A (en) * 1983-03-17 1985-04-23 Metaframe, Inc. Electric pump for use in filtering system of a tropical fish tank or the like
US4589982A (en) * 1984-04-04 1986-05-20 Willinger Bros., Inc. Removable power pack pump assembly
US4559136A (en) * 1984-08-31 1985-12-17 Vortex Innerspace Products, Inc. Aquarium filtering system
US5006238A (en) * 1989-06-20 1991-04-09 Kabushiki Kaisha Tominaga Jyushi Kogyosho Filter for use in a fish culturing tank
US5137433A (en) * 1990-05-29 1992-08-11 Willinger Bros., Inc. Aquarium power head with integral muffler
US5087357A (en) * 1990-09-07 1992-02-11 Villa Aquilino L Aquarium filter apparatus

Also Published As

Publication number Publication date
US5277800A (en) 1994-01-11
CA2086584A1 (en) 1993-08-30
JPH0817898B2 (en) 1996-02-28
JPH05285314A (en) 1993-11-02
CA2086584C (en) 1996-10-08
DE4206425A1 (en) 1993-09-02
DE59205405D1 (en) 1996-03-28
EP0558807A1 (en) 1993-09-08

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